GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870 X2
38%
38%
AMD Radeon HD 7990
263%
263%
AMD Radeon HD 7990 is approximately 225% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| Graphics ProcessorDifferent | R700 x2 | Malta x2 |
| CoresDifferent | 800 x2 | 2048 x2 |
| TMUsDifferent | 40 x2 | 128 x2 |
| ROPsDifferent | 16 x2 | 32 x2 |
| Memory SizeDifferent | 1024 MB x2 | 3 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 384 bit x2 |
Graphics Processor
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| GPU NameDifferent | R700 | Malta |
| GPU VariantDifferent | R700 XT(215-0669045) | Malta XT(215-0849026) |
| ArchitectureDifferent | TeraScale | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 28 nm |
| TransistorsDifferent | 956 million | 4,313 million |
| DensityDifferent | 3.7M / mm² | 11.8M / mm² |
| Die SizeDifferent | 256 mm² | 365 mm² |
Graphics Card
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| Release DateDifferent | Aug 12th, 2008 | Apr 24th, 2013 |
| GenerationDifferent | Radeon R700(HD 4800) | Southern Islands(HD 7900) |
| PredecessorDifferent | Radeon R600 | Northern Islands |
| SuccessorDifferent | Evergreen | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 550 USD | 999 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 79 in our database | 37 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | N/A |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1500 MHz6 Gbps effective |
| Base ClockDifferent | N/A | 950 MHz |
| Boost ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 384 bit |
| BandwidthDifferent | 115.2 GB/s | 288.0 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| Shading UnitsDifferent | 800 | 2048 |
| TMUsDifferent | 40 | 128 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 768 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 128.0 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 267 mm10.5 inches | 304 mm12 inches |
| HeightDifferent | 111 mm4.4 inches | 106 mm4.2 inches |
| Width | 38 mm1.5 inches | 38 mm1.5 inches |
| TDPDifferent | 286 W | 375 W |
| Suggested PSUDifferent | 600 W | 750 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 2x 8-pin |
| Board NumberDifferent | 109-B50937-00 | 109-C47637-00A_02 |
Graphics Features
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7990 |
|---|---|---|
| DirectXDifferent | 10.1 (10_1) | 12 (11_1) |
| OpenGLDifferent | 3.3 | 4.6 |
| OpenCLDifferent | 1.1 | 2.1 (1.2) |
| VulkanDifferent | N/A | 1.2.175 |
| Shader ModelDifferent | 4.1 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
48
Detailed Features
More Comparisons with ATI Radeon HD 4870 X2
Compare ATI Radeon HD 4870 X2 with other GPUs of similar performance
ATI Radeon HD 4870 X2 vs GeForce GTX 570
GeForce GTX 570 Performance120%
GeForce GTX 570 is 20% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs GeForce GTX 660
GeForce GTX 660 Performance119%
GeForce GTX 660 is 19% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon R7 370
Radeon R7 370 Performance119%
Radeon R7 370 is 19% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon HD 6970
Radeon HD 6970 Performance115%
Radeon HD 6970 is 15% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs GeForce GTX 480
GeForce GTX 480 Performance110%
GeForce GTX 480 is 10% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon HD 7850
Radeon HD 7850 Performance108%
Radeon HD 7850 is 8% faster than ATI Radeon HD 4870 X2
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More Comparisons with AMD Radeon HD 7990
Compare AMD Radeon HD 7990 with other GPUs of similar performance
AMD Radeon HD 7990 vs Radeon RX 590
Radeon RX 590 Performance115%
Radeon RX 590 is 15% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon R9 FURY
Radeon R9 FURY Performance112%
Radeon R9 FURY is 12% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 980
GeForce GTX 980 Performance111%
GeForce GTX 980 is 11% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance110%
GeForce GTX 1650 SUPER is 10% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 6500 XT
Radeon RX 6500 XT Performance109%
Radeon RX 6500 XT is 9% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 5500 XT
Radeon RX 5500 XT Performance108%
Radeon RX 5500 XT is 8% faster than AMD Radeon HD 7990
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